Changes to make querydsl-elasticsearch work with latest elasticsearch

[gkathire]

This change contains

• Fixes to make querydsl-elasticsearch to work with the latest elasticsearch 2.x
• Added the String Contains Ignorecase criteria support

Except for the Package verification test case , other test cases passed.

Let me know if you need any other changes to this fix.

[kevinleturc]

Hello,

Changes to upgrade the elasticsearch version to 2.x will break backward compatibility, we need to keep the projet running on elasticsearch 1.x version for groupId/artificatId.
We can probably split the project into maven sub-mobules (as several classes are in common), for example :

• querydsl-elasticsearch-parent
  • querydsl-elasticsearch-core
  • querydsl-elasticsearch
  • querydsl-elasticsearch2

@timowest : what do you think ? Is it better to copy the project and made proposed changes ?

For the new criteria support, it's ok for me.
Could you create a pull request with changes for new criteria support for elasticsearch 1.x ?

Regards

[gkathire]

Sure, I can create a new pull request for the new criteria support. Since there are only 3 files in the project, i think we can make a copy of it and create a new querydsl-elasticsearch2 project. In that case we will have more freedom to make changes to the project with the new es2 specific changes without confined to the es1.x api. Let me know what to do and I can create a new pull request based on the suggestion.

[timowest]

I agree that a querydsl-elasticsearch2 project would be better

[kevinleturc]

Regarding to spring-projects/spring-data-elasticsearch#134, can we merge this pull request ?
Unless we need to keep elasticsearch 1.x compatibility ?

[gkathire]

If you use the patch from #16 , you dont have to upgrade the elastic search. It contains support for elasticsearch-2 support as a new library.

[timowest]

Closing in favor of #19